Ernst richter



. (No Model.)

E. RICHTER.

MACHINE FOR CLEANING MALT.

No. 488,403. Patented Dec. 20, 1892.

I OIC/.aja jf O INVENTOH.' n n Wr @JJM LI /MWM @fj/WQ? ATTORNEY.

WITNESSES ERNST RICHTER, OF NEW YORK, N.`Y., ASSIGNOR OF rIWVO-TI-IIRDS T() ADAM SCHAEFER AND KARL FR. JENNE, OF SAME PLACE.

`lVlACHlNE FOR CLEANING MALT.

SPECIFICATION forming' part of Letters Patent No. 488,403, dated December 20, 1892. Application tiled July 18, 1892. Serial No. 440,322. (No model.)

To all whom t may concern: shaft D has at one end a swing bearing cl in Be it known that I, ERNST RICHTER, a citia block cl which is supported bya fixed crosszen of the United States, and a resident of piece F, while at the other end it hasaswing the city, county, and State of New York, have bearing cl2 in a block cl3 which is carried by 5 invented a new and useful Improvement in a vertically movable cross-piece G, the latter 55 A Machines for Cleaning Malt; and I do herehaving its ends fitted to ways 7L, h, in the verbydeclare that the following is a full and extical frames I-I, H. The cross-piece G is supact description thereof, reference being had ported adj-ustably and to this end it is carto the accompanying drawings, and to the letried by screw-threaded rods K, K, which pass I ters of reference marked thereon, making a through a fixed cross-piece L and are provided 6o part of this specification. on the upper side of the cross-piece with hand- My invention relates to machines of the wheels k, lc, which engage the threads ofthe general character of those sometimes used for rods.

cleaning grain and my object is to adapt such Through the means just described the in- I machines specially for removing,` from malted clination of the cone and shell may be varied 65 grain both the husk and the germ. to regulate the speed of the passage through My improvements relate particularly to the the machine of the malt which is fed by the means for regulating the passage of the malt spout M,

through the machine so that it may be sub` The drum and shell are adjustable longijected for a longer or shorter time as desired tudinally with respect to each other, as usual, 7o to the action of the machine, and to the forto regulate the action of the abrading surmation of the abrading surfaces whereby that faces and to take up wear but it is necessary part of the germ which lies within the husks that the adjusting means should be someis more certainly and completely removed. what modified on account ofthe vertical ad- In the drawings: Figure l is a vertical cenjustabilityof the end of theshaft I. Accord- 75 tral section through so much of a grain cleaningly I attach loosely to the block cl3 and about ing machine as is necessary to enable the apin line with the center of the bearing` d2, two plication of my improvements to be underbolts N, N, which are screw-threaded to restood: Fig. 2 is a cross-section on the line xceive each two nuts n, n. A bar O, having of Fig. l: Fig. 3 is an end elevation of the an eye at each end to receive the respective 8o parts shown in Fig. l: Fig. 4 is a detail view bolt N, is placed between the nuts n, n, and of parts shown in Fig. 3, and Fig. 5 is a deat its middle embraces the shaft D between tail View showing the formation of the outer two collars 0, o, which are fixed thereon. The abrading surface. l loose or hinge connection of the bolts to the The machine comprises essentially an outer, block d3 in the line of the bearing cl2 permits 8 5 conical shell A, having its concave surface the bolts and the bar to adjust themselves to lined with abrading material B, and an inner every change in position of the cross-piece G. conical drum C, rotating within the shell A The abradingv material B on the inner surand having its convex surface armed with face of the shell A may be of natural or arti- 4o abrading material which is preferably in the ficial stone of the proper degree of hardness 9o form of brushes c, c, disposed longitudinally. and of a suitable character, but in order to The drum C is fixed upon a shaft D which eect in a satisfactory manner my ultimate may be rotated in one direction through a purpose, that is, the complete removal of the chain-wheel Ewhich is also fixed on the shaft. germ as well as ot' the husk of the malt, I

The shell A is supported by spiders a, a, the have found it desirable to form the inner sur- 95 hubs a', ct', of which having bearings on the face of the abrading material with a series of shaftD, so thatthe shell maybe rotated freely longitudinal grooves b, h, which should be in the opposite direction to that in which the rectangular in cross-section, of a width about drum C is rotated, the shell being provided equal to the thickness of a grain of malt and 5o for this purpose with a belt-pulley a2. The of a depth somewhat greater. As the grains 10o of malt are rolled over this surface by the action of the shell and the cone the germs project into the grooves b, b, and are broken off or separated from the grains as the latter are turned over.

I am aware that it has been proposed heretofore to secure strips of iron longitudinally upon the surface ofthe wooden shell of a grain-scourer as well as to provide the drum of such a machine and the shell itself with rounded grooves parallel with the axis of the drum for the purpose of turning the grains over. Neither of the arrangements referred to is capable of effecting the result which I have attained, that is to say, that thorough removal of the germ from the grain which is important to the carrying out of the method described in Letters Patent of the United States granted to Adam Schaefer and myself on the 28th of June, 1892, and numbered 477,823. In order to effect this result I have found it necessary to form the grooves in the body of the stone with a width about equal to the thickness of a grain of malt but of a greater depth so that the end of each grain, as it falls into the groove and is withdrawn and turned forward by the brushes, may be scraped with some force against the rear side shaft supporting said drum and shell, swing bearings for said shaft, a vertically adjustable support for one of said bearings, screwthreaded bolts loosely attached to said support in the line of the bearing, a bar engaging said shaft, and nuts on said bolts engaging said bar, substantially as shown and described.

2. The combination with a drum having brushes on its surface and means to rotate said drum, of a shell inclosing said drum, said shell having an interior lining of stone with longitudinal grooves formed in its surface, said groves being rectangular in cross section and of a width less than their depth, substantially as shown and described.

In testimony whereof I have signed my naine to this specification in thc presence of two subscribing witnesses.

ERNST RICHTER.

Witnesses:

W. B. GREELEY, A. WIDDER. 

